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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-imx/hardware.h

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  1 /*
  2  * Copyright 2004-2007, 2014 Freescale Semiconductor, Inc. All Rights Reserved.
  3  * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
  4  *
  5  * This program is free software; you can redistribute it and/or
  6  * modify it under the terms of the GNU General Public License
  7  * as published by the Free Software Foundation; either version 2
  8  * of the License, or (at your option) any later version.
  9  * This program is distributed in the hope that it will be useful,
 10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12  * GNU General Public License for more details.
 13  *
 14  * You should have received a copy of the GNU General Public License
 15  * along with this program; if not, write to the Free Software
 16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 17  * MA  02110-1301, USA.
 18  */
 19 
 20 #ifndef __ASM_ARCH_MXC_HARDWARE_H__
 21 #define __ASM_ARCH_MXC_HARDWARE_H__
 22 
 23 #ifndef __ASSEMBLY__
 24 #include <asm/io.h>
 25 #include <soc/imx/revision.h>
 26 #endif
 27 #include <asm/sizes.h>
 28 
 29 #define addr_in_module(addr, mod) \
 30         ((unsigned long)(addr) - mod ## _BASE_ADDR < mod ## _SIZE)
 31 
 32 #define IMX_IO_P2V_MODULE(addr, module)                                 \
 33         (((addr) - module ## _BASE_ADDR) < module ## _SIZE ?            \
 34          (addr) - (module ## _BASE_ADDR) + (module ## _BASE_ADDR_VIRT) : 0)
 35 
 36 /*
 37  * This is rather complicated for humans and ugly to verify, but for a machine
 38  * it's OK.  Still more as it is usually only applied to constants.  The upsides
 39  * on using this approach are:
 40  *
 41  *  - same mapping on all i.MX machines
 42  *  - works for assembler, too
 43  *  - no need to nurture #defines for virtual addresses
 44  *
 45  * The downside it, it's hard to verify (but I have a script for that).
 46  *
 47  * Obviously this needs to be injective for each SoC.  In general it maps the
 48  * whole address space to [0xf4000000, 0xf5ffffff].  So [0xf6000000,0xfeffffff]
 49  * is free for per-machine use (e.g. KZM_ARM11_01 uses 64MiB there).
 50  *
 51  * It applies the following mappings for the different SoCs:
 52  *
 53  * mx1:
 54  *      IO      0x00200000+0x100000     ->      0xf4000000+0x100000
 55  * mx21:
 56  *      AIPI    0x10000000+0x100000     ->      0xf4400000+0x100000
 57  *      SAHB1   0x80000000+0x100000     ->      0xf5000000+0x100000
 58  *      X_MEMC  0xdf000000+0x004000     ->      0xf5f00000+0x004000
 59  * mx25:
 60  *      AIPS1   0x43f00000+0x100000     ->      0xf5300000+0x100000
 61  *      AIPS2   0x53f00000+0x100000     ->      0xf5700000+0x100000
 62  *      AVIC    0x68000000+0x100000     ->      0xf5800000+0x100000
 63  * mx27:
 64  *      AIPI    0x10000000+0x100000     ->      0xf4400000+0x100000
 65  *      SAHB1   0x80000000+0x100000     ->      0xf5000000+0x100000
 66  *      X_MEMC  0xd8000000+0x100000     ->      0xf5c00000+0x100000
 67  * mx31:
 68  *      AIPS1   0x43f00000+0x100000     ->      0xf5300000+0x100000
 69  *      AIPS2   0x53f00000+0x100000     ->      0xf5700000+0x100000
 70  *      AVIC    0x68000000+0x100000     ->      0xf5800000+0x100000
 71  *      X_MEMC  0xb8000000+0x010000     ->      0xf5c00000+0x010000
 72  *      SPBA0   0x50000000+0x100000     ->      0xf5400000+0x100000
 73  * mx35:
 74  *      AIPS1   0x43f00000+0x100000     ->      0xf5300000+0x100000
 75  *      AIPS2   0x53f00000+0x100000     ->      0xf5700000+0x100000
 76  *      AVIC    0x68000000+0x100000     ->      0xf5800000+0x100000
 77  *      X_MEMC  0xb8000000+0x010000     ->      0xf5c00000+0x010000
 78  *      SPBA0   0x50000000+0x100000     ->      0xf5400000+0x100000
 79  * mx51:
 80  *      TZIC    0x0fffc000+0x004000     ->      0xf4bfc000+0x004000
 81  *      IRAM    0x1ffe0000+0x020000     ->      0xf4fe0000+0x020000
 82  *      DEBUG   0x60000000+0x100000     ->      0xf5000000+0x100000
 83  *      SPBA0   0x70000000+0x100000     ->      0xf5400000+0x100000
 84  *      AIPS1   0x73f00000+0x100000     ->      0xf5700000+0x100000
 85  *      AIPS2   0x83f00000+0x100000     ->      0xf5300000+0x100000
 86  * mx53:
 87  *      TZIC    0x0fffc000+0x004000     ->      0xf4bfc000+0x004000
 88  *      DEBUG   0x40000000+0x100000     ->      0xf5000000+0x100000
 89  *      SPBA0   0x50000000+0x100000     ->      0xf5400000+0x100000
 90  *      AIPS1   0x53f00000+0x100000     ->      0xf5700000+0x100000
 91  *      AIPS2   0x63f00000+0x100000     ->      0xf5300000+0x100000
 92  * mx6q:
 93  *      SCU     0x00a00000+0x004000     ->      0xf4000000+0x004000
 94  *      CCM     0x020c4000+0x004000     ->      0xf42c4000+0x004000
 95  *      ANATOP  0x020c8000+0x004000     ->      0xf42c8000+0x004000
 96  *      UART4   0x021f0000+0x004000     ->      0xf42f0000+0x004000
 97  */
 98 #define IMX_IO_P2V(x)   (                                               \
 99                         (((x) & 0x80000000) >> 7) |                     \
100                         (0xf4000000 +                                   \
101                         (((x) & 0x50000000) >> 6) +                     \
102                         (((x) & 0x0b000000) >> 4) +                     \
103                         (((x) & 0x000fffff))))
104 
105 #define IMX_IO_ADDRESS(x)       IOMEM(IMX_IO_P2V(x))
106 
107 #include "mxc.h"
108 
109 #include "mx3x.h"
110 #include "mx31.h"
111 #include "mx35.h"
112 #include "mx2x.h"
113 #include "mx21.h"
114 #include "mx27.h"
115 
116 #define imx_map_entry(soc, name, _type) {                               \
117         .virtual = soc ## _IO_P2V(soc ## _ ## name ## _BASE_ADDR),      \
118         .pfn = __phys_to_pfn(soc ## _ ## name ## _BASE_ADDR),           \
119         .length = soc ## _ ## name ## _SIZE,                            \
120         .type = _type,                                                  \
121 }
122 
123 /* There's an off-by-one between the gpio bank number and the gpiochip */
124 /* range e.g. GPIO_1_5 is gpio 5 under linux */
125 #define IMX_GPIO_NR(bank, nr)           (((bank) - 1) * 32 + (nr))
126 
127 #endif /* __ASM_ARCH_MXC_HARDWARE_H__ */
128 

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